There are a lot of people reporting an issue with battery drain across different Samsung Galaxy phones. It appears that a recent Samsung update is causing general issues and Samsung should provide a communication on when this will be resolved.

Up to last Thursday my phone worked normally. Since then the power has been draining at 4 to 5 times the usual rate with root cause being Samsung apps running in the background draining the power.

The issue appears to be widespread.

Samsung - Please advise on when this will be resolved